'Weekly Low' and 'Weekly High' are based on average daily prices across all producers.

The National Average is calculated as the
weighted average of each State/Territory's metropolitan and non-metropolitan retail petrol prices, with the
weights based on the number of vehicles using unleaded petrol registered in each of these areas.

The Regional Average price is calculated as the weighted average of the
retail petrol prices for the non-metropolitan regions in each State/Territory, where the weights are based on
the number of vehicles using unleaded petrol.
(Vehicle data source: ABS Motor Vehicle Census, 2011, Cat No 9309.0)

Where retail ULP market prices are not available from MotorMouth for specific locations, MotorMouth 's E10 prices are published.